Editing Instanced Subobjects on a Parent BP may change unrelated Instanced Subobjects on a Child BP

Child Blueprints with instanced subobjects inherit changes made by the Parent Blueprint's instanced subobjects, regardless of what property they are assigned to.

Tested in 4.18.3 (CL - 3832480), 4.19.2 (CL - 4033788), 4.20 (CL - 4200166), 4.21 (CL - 4199311)

1. Download and extract attached project
2. Open the Parent and Child Blueprints in separate windows
3. Expand Property1 and Property2 on both blueprints
4. Make changes to the Parent Blueprint

Expected: The changes made to the Parent Blueprint would not carry over to the child

Result: The Child Blueprint inherits the changes made from the Parent Blueprint